1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server; 18 19 import static android.Manifest.permission.CONNECTIVITY_INTERNAL; 20 import static android.Manifest.permission.DUMP; 21 import static android.Manifest.permission.SHUTDOWN; 22 import static android.net.NetworkStats.SET_DEFAULT; 23 import static android.net.NetworkStats.TAG_NONE; 24 import static android.net.NetworkStats.UID_ALL; 25 import static android.net.TrafficStats.UID_TETHERING; 26 import static com.android.server.NetworkManagementService.NetdResponseCode.InterfaceGetCfgResult; 27 import static com.android.server.NetworkManagementService.NetdResponseCode.InterfaceListResult; 28 import static com.android.server.NetworkManagementService.NetdResponseCode.InterfaceRxThrottleResult; 29 import static com.android.server.NetworkManagementService.NetdResponseCode.InterfaceTxThrottleResult; 30 import static com.android.server.NetworkManagementService.NetdResponseCode.IpFwdStatusResult; 31 import static com.android.server.NetworkManagementService.NetdResponseCode.TetherDnsFwdTgtListResult; 32 import static com.android.server.NetworkManagementService.NetdResponseCode.TetherInterfaceListResult; 33 import static com.android.server.NetworkManagementService.NetdResponseCode.TetherStatusResult; 34 import static com.android.server.NetworkManagementService.NetdResponseCode.TetheringStatsResult; 35 import static com.android.server.NetworkManagementService.NetdResponseCode.TtyListResult; 36 import static com.android.server.NetworkManagementSocketTagger.PROP_QTAGUID_ENABLED; 37 38 import android.bluetooth.BluetoothTetheringDataTracker; 39 import android.content.Context; 40 import android.net.INetworkManagementEventObserver; 41 import android.net.InterfaceConfiguration; 42 import android.net.LinkAddress; 43 import android.net.NetworkStats; 44 import android.net.NetworkUtils; 45 import android.net.RouteInfo; 46 import android.net.wifi.WifiConfiguration; 47 import android.net.wifi.WifiConfiguration.KeyMgmt; 48 import android.os.Binder; 49 import android.os.Handler; 50 import android.os.INetworkManagementService; 51 import android.os.Process; 52 import android.os.RemoteCallbackList; 53 import android.os.RemoteException; 54 import android.os.SystemClock; 55 import android.os.SystemProperties; 56 import android.util.Log; 57 import android.util.Slog; 58 import android.util.SparseBooleanArray; 59 60 import com.android.internal.net.NetworkStatsFactory; 61 import com.android.internal.util.Preconditions; 62 import com.android.server.NativeDaemonConnector.Command; 63 import com.android.server.net.LockdownVpnTracker; 64 import com.google.android.collect.Maps; 65 66 import java.io.BufferedReader; 67 import java.io.DataInputStream; 68 import java.io.File; 69 import java.io.FileDescriptor; 70 import java.io.FileInputStream; 71 import java.io.IOException; 72 import java.io.InputStreamReader; 73 import java.io.PrintWriter; 74 import java.net.Inet4Address; 75 import java.net.InetAddress; 76 import java.net.InterfaceAddress; 77 import java.net.NetworkInterface; 78 import java.net.SocketException; 79 import java.util.ArrayList; 80 import java.util.Collection; 81 import java.util.HashMap; 82 import java.util.Map; 83 import java.util.NoSuchElementException; 84 import java.util.StringTokenizer; 85 import java.util.concurrent.CountDownLatch; 86 87 /** 88 * @hide 89 */ 90 public class NetworkManagementService extends INetworkManagementService.Stub 91 implements Watchdog.Monitor { 92 private static final String TAG = "NetworkManagementService"; 93 private static final boolean DBG = false; 94 private static final String NETD_TAG = "NetdConnector"; 95 96 private static final String ADD = "add"; 97 private static final String REMOVE = "remove"; 98 99 private static final String ALLOW = "allow"; 100 private static final String DENY = "deny"; 101 102 private static final String DEFAULT = "default"; 103 private static final String SECONDARY = "secondary"; 104 105 /** 106 * Name representing {@link #setGlobalAlert(long)} limit when delivered to 107 * {@link INetworkManagementEventObserver#limitReached(String, String)}. 108 */ 109 public static final String LIMIT_GLOBAL_ALERT = "globalAlert"; 110 111 class NetdResponseCode { 112 /* Keep in sync with system/netd/ResponseCode.h */ 113 public static final int InterfaceListResult = 110; 114 public static final int TetherInterfaceListResult = 111; 115 public static final int TetherDnsFwdTgtListResult = 112; 116 public static final int TtyListResult = 113; 117 118 public static final int TetherStatusResult = 210; 119 public static final int IpFwdStatusResult = 211; 120 public static final int InterfaceGetCfgResult = 213; 121 public static final int SoftapStatusResult = 214; 122 public static final int InterfaceRxCounterResult = 216; 123 public static final int InterfaceTxCounterResult = 217; 124 public static final int InterfaceRxThrottleResult = 218; 125 public static final int InterfaceTxThrottleResult = 219; 126 public static final int QuotaCounterResult = 220; 127 public static final int TetheringStatsResult = 221; 128 public static final int DnsProxyQueryResult = 222; 129 130 public static final int InterfaceChange = 600; 131 public static final int BandwidthControl = 601; 132 public static final int InterfaceClassActivity = 613; 133 } 134 135 /** 136 * Binder context for this service 137 */ 138 private Context mContext; 139 140 /** 141 * connector object for communicating with netd 142 */ 143 private NativeDaemonConnector mConnector; 144 145 private final Handler mMainHandler = new Handler(); 146 147 private Thread mThread; 148 private CountDownLatch mConnectedSignal = new CountDownLatch(1); 149 150 private final RemoteCallbackList<INetworkManagementEventObserver> mObservers = 151 new RemoteCallbackList<INetworkManagementEventObserver>(); 152 153 private final NetworkStatsFactory mStatsFactory = new NetworkStatsFactory(); 154 155 private Object mQuotaLock = new Object(); 156 /** Set of interfaces with active quotas. */ 157 private HashMap<String, Long> mActiveQuotas = Maps.newHashMap(); 158 /** Set of interfaces with active alerts. */ 159 private HashMap<String, Long> mActiveAlerts = Maps.newHashMap(); 160 /** Set of UIDs with active reject rules. */ 161 private SparseBooleanArray mUidRejectOnQuota = new SparseBooleanArray(); 162 163 private Object mIdleTimerLock = new Object(); 164 /** Set of interfaces with active idle timers. */ 165 private static class IdleTimerParams { 166 public final int timeout; 167 public final String label; 168 public int networkCount; 169 170 IdleTimerParams(int timeout, String label) { 171 this.timeout = timeout; 172 this.label = label; 173 this.networkCount = 1; 174 } 175 } 176 private HashMap<String, IdleTimerParams> mActiveIdleTimers = Maps.newHashMap(); 177 178 private volatile boolean mBandwidthControlEnabled; 179 private volatile boolean mFirewallEnabled; 180 181 /** 182 * Constructs a new NetworkManagementService instance 183 * 184 * @param context Binder context for this service 185 */ 186 private NetworkManagementService(Context context) { 187 mContext = context; 188 189 if ("simulator".equals(SystemProperties.get("ro.product.device"))) { 190 return; 191 } 192 193 mConnector = new NativeDaemonConnector( 194 new NetdCallbackReceiver(), "netd", 10, NETD_TAG, 160); 195 mThread = new Thread(mConnector, NETD_TAG); 196 197 // Add ourself to the Watchdog monitors. 198 Watchdog.getInstance().addMonitor(this); 199 } 200 201 public static NetworkManagementService create(Context context) throws InterruptedException { 202 final NetworkManagementService service = new NetworkManagementService(context); 203 final CountDownLatch connectedSignal = service.mConnectedSignal; 204 if (DBG) Slog.d(TAG, "Creating NetworkManagementService"); 205 service.mThread.start(); 206 if (DBG) Slog.d(TAG, "Awaiting socket connection"); 207 connectedSignal.await(); 208 if (DBG) Slog.d(TAG, "Connected"); 209 return service; 210 } 211 212 public void systemReady() { 213 prepareNativeDaemon(); 214 if (DBG) Slog.d(TAG, "Prepared"); 215 } 216 217 @Override 218 public void registerObserver(INetworkManagementEventObserver observer) { 219 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 220 mObservers.register(observer); 221 } 222 223 @Override 224 public void unregisterObserver(INetworkManagementEventObserver observer) { 225 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 226 mObservers.unregister(observer); 227 } 228 229 /** 230 * Notify our observers of an interface status change 231 */ 232 private void notifyInterfaceStatusChanged(String iface, boolean up) { 233 final int length = mObservers.beginBroadcast(); 234 for (int i = 0; i < length; i++) { 235 try { 236 mObservers.getBroadcastItem(i).interfaceStatusChanged(iface, up); 237 } catch (RemoteException e) { 238 } 239 } 240 mObservers.finishBroadcast(); 241 } 242 243 /** 244 * Notify our observers of an interface link state change 245 * (typically, an Ethernet cable has been plugged-in or unplugged). 246 */ 247 private void notifyInterfaceLinkStateChanged(String iface, boolean up) { 248 final int length = mObservers.beginBroadcast(); 249 for (int i = 0; i < length; i++) { 250 try { 251 mObservers.getBroadcastItem(i).interfaceLinkStateChanged(iface, up); 252 } catch (RemoteException e) { 253 } 254 } 255 mObservers.finishBroadcast(); 256 } 257 258 /** 259 * Notify our observers of an interface addition. 260 */ 261 private void notifyInterfaceAdded(String iface) { 262 final int length = mObservers.beginBroadcast(); 263 for (int i = 0; i < length; i++) { 264 try { 265 mObservers.getBroadcastItem(i).interfaceAdded(iface); 266 } catch (RemoteException e) { 267 } 268 } 269 mObservers.finishBroadcast(); 270 } 271 272 /** 273 * Notify our observers of an interface removal. 274 */ 275 private void notifyInterfaceRemoved(String iface) { 276 // netd already clears out quota and alerts for removed ifaces; update 277 // our sanity-checking state. 278 mActiveAlerts.remove(iface); 279 mActiveQuotas.remove(iface); 280 281 final int length = mObservers.beginBroadcast(); 282 for (int i = 0; i < length; i++) { 283 try { 284 mObservers.getBroadcastItem(i).interfaceRemoved(iface); 285 } catch (RemoteException e) { 286 } 287 } 288 mObservers.finishBroadcast(); 289 } 290 291 /** 292 * Notify our observers of a limit reached. 293 */ 294 private void notifyLimitReached(String limitName, String iface) { 295 final int length = mObservers.beginBroadcast(); 296 for (int i = 0; i < length; i++) { 297 try { 298 mObservers.getBroadcastItem(i).limitReached(limitName, iface); 299 } catch (RemoteException e) { 300 } 301 } 302 mObservers.finishBroadcast(); 303 } 304 305 /** 306 * Notify our observers of a change in the data activity state of the interface 307 */ 308 private void notifyInterfaceClassActivity(String label, boolean active) { 309 final int length = mObservers.beginBroadcast(); 310 for (int i = 0; i < length; i++) { 311 try { 312 mObservers.getBroadcastItem(i).interfaceClassDataActivityChanged(label, active); 313 } catch (RemoteException e) { 314 } 315 } 316 mObservers.finishBroadcast(); 317 } 318 319 /** 320 * Prepare native daemon once connected, enabling modules and pushing any 321 * existing in-memory rules. 322 */ 323 private void prepareNativeDaemon() { 324 mBandwidthControlEnabled = false; 325 326 // only enable bandwidth control when support exists 327 final boolean hasKernelSupport = new File("/proc/net/xt_qtaguid/ctrl").exists(); 328 if (hasKernelSupport) { 329 Slog.d(TAG, "enabling bandwidth control"); 330 try { 331 mConnector.execute("bandwidth", "enable"); 332 mBandwidthControlEnabled = true; 333 } catch (NativeDaemonConnectorException e) { 334 Log.wtf(TAG, "problem enabling bandwidth controls", e); 335 } 336 } else { 337 Slog.d(TAG, "not enabling bandwidth control"); 338 } 339 340 SystemProperties.set(PROP_QTAGUID_ENABLED, mBandwidthControlEnabled ? "1" : "0"); 341 342 // push any existing quota or UID rules 343 synchronized (mQuotaLock) { 344 int size = mActiveQuotas.size(); 345 if (size > 0) { 346 Slog.d(TAG, "pushing " + size + " active quota rules"); 347 final HashMap<String, Long> activeQuotas = mActiveQuotas; 348 mActiveQuotas = Maps.newHashMap(); 349 for (Map.Entry<String, Long> entry : activeQuotas.entrySet()) { 350 setInterfaceQuota(entry.getKey(), entry.getValue()); 351 } 352 } 353 354 size = mActiveAlerts.size(); 355 if (size > 0) { 356 Slog.d(TAG, "pushing " + size + " active alert rules"); 357 final HashMap<String, Long> activeAlerts = mActiveAlerts; 358 mActiveAlerts = Maps.newHashMap(); 359 for (Map.Entry<String, Long> entry : activeAlerts.entrySet()) { 360 setInterfaceAlert(entry.getKey(), entry.getValue()); 361 } 362 } 363 364 size = mUidRejectOnQuota.size(); 365 if (size > 0) { 366 Slog.d(TAG, "pushing " + size + " active uid rules"); 367 final SparseBooleanArray uidRejectOnQuota = mUidRejectOnQuota; 368 mUidRejectOnQuota = new SparseBooleanArray(); 369 for (int i = 0; i < uidRejectOnQuota.size(); i++) { 370 setUidNetworkRules(uidRejectOnQuota.keyAt(i), uidRejectOnQuota.valueAt(i)); 371 } 372 } 373 } 374 375 // TODO: Push any existing firewall state 376 setFirewallEnabled(mFirewallEnabled || LockdownVpnTracker.isEnabled()); 377 } 378 379 // 380 // Netd Callback handling 381 // 382 383 private class NetdCallbackReceiver implements INativeDaemonConnectorCallbacks { 384 @Override 385 public void onDaemonConnected() { 386 // event is dispatched from internal NDC thread, so we prepare the 387 // daemon back on main thread. 388 if (mConnectedSignal != null) { 389 mConnectedSignal.countDown(); 390 mConnectedSignal = null; 391 } else { 392 mMainHandler.post(new Runnable() { 393 @Override 394 public void run() { 395 prepareNativeDaemon(); 396 } 397 }); 398 } 399 } 400 401 @Override 402 public boolean onEvent(int code, String raw, String[] cooked) { 403 switch (code) { 404 case NetdResponseCode.InterfaceChange: 405 /* 406 * a network interface change occured 407 * Format: "NNN Iface added <name>" 408 * "NNN Iface removed <name>" 409 * "NNN Iface changed <name> <up/down>" 410 * "NNN Iface linkstatus <name> <up/down>" 411 */ 412 if (cooked.length < 4 || !cooked[1].equals("Iface")) { 413 throw new IllegalStateException( 414 String.format("Invalid event from daemon (%s)", raw)); 415 } 416 if (cooked[2].equals("added")) { 417 notifyInterfaceAdded(cooked[3]); 418 return true; 419 } else if (cooked[2].equals("removed")) { 420 notifyInterfaceRemoved(cooked[3]); 421 return true; 422 } else if (cooked[2].equals("changed") && cooked.length == 5) { 423 notifyInterfaceStatusChanged(cooked[3], cooked[4].equals("up")); 424 return true; 425 } else if (cooked[2].equals("linkstate") && cooked.length == 5) { 426 notifyInterfaceLinkStateChanged(cooked[3], cooked[4].equals("up")); 427 return true; 428 } 429 throw new IllegalStateException( 430 String.format("Invalid event from daemon (%s)", raw)); 431 // break; 432 case NetdResponseCode.BandwidthControl: 433 /* 434 * Bandwidth control needs some attention 435 * Format: "NNN limit alert <alertName> <ifaceName>" 436 */ 437 if (cooked.length < 5 || !cooked[1].equals("limit")) { 438 throw new IllegalStateException( 439 String.format("Invalid event from daemon (%s)", raw)); 440 } 441 if (cooked[2].equals("alert")) { 442 notifyLimitReached(cooked[3], cooked[4]); 443 return true; 444 } 445 throw new IllegalStateException( 446 String.format("Invalid event from daemon (%s)", raw)); 447 // break; 448 case NetdResponseCode.InterfaceClassActivity: 449 /* 450 * An network interface class state changed (active/idle) 451 * Format: "NNN IfaceClass <active/idle> <label>" 452 */ 453 if (cooked.length < 4 || !cooked[1].equals("IfaceClass")) { 454 throw new IllegalStateException( 455 String.format("Invalid event from daemon (%s)", raw)); 456 } 457 boolean isActive = cooked[2].equals("active"); 458 notifyInterfaceClassActivity(cooked[3], isActive); 459 return true; 460 // break; 461 default: break; 462 } 463 return false; 464 } 465 } 466 467 468 // 469 // INetworkManagementService members 470 // 471 472 @Override 473 public String[] listInterfaces() { 474 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 475 try { 476 return NativeDaemonEvent.filterMessageList( 477 mConnector.executeForList("interface", "list"), InterfaceListResult); 478 } catch (NativeDaemonConnectorException e) { 479 throw e.rethrowAsParcelableException(); 480 } 481 } 482 483 @Override 484 public InterfaceConfiguration getInterfaceConfig(String iface) { 485 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 486 487 final NativeDaemonEvent event; 488 try { 489 event = mConnector.execute("interface", "getcfg", iface); 490 } catch (NativeDaemonConnectorException e) { 491 throw e.rethrowAsParcelableException(); 492 } 493 494 event.checkCode(InterfaceGetCfgResult); 495 496 // Rsp: 213 xx:xx:xx:xx:xx:xx yyy.yyy.yyy.yyy zzz flag1 flag2 flag3 497 final StringTokenizer st = new StringTokenizer(event.getMessage()); 498 499 InterfaceConfiguration cfg; 500 try { 501 cfg = new InterfaceConfiguration(); 502 cfg.setHardwareAddress(st.nextToken(" ")); 503 InetAddress addr = null; 504 int prefixLength = 0; 505 try { 506 addr = NetworkUtils.numericToInetAddress(st.nextToken()); 507 } catch (IllegalArgumentException iae) { 508 Slog.e(TAG, "Failed to parse ipaddr", iae); 509 } 510 511 try { 512 prefixLength = Integer.parseInt(st.nextToken()); 513 } catch (NumberFormatException nfe) { 514 Slog.e(TAG, "Failed to parse prefixLength", nfe); 515 } 516 517 cfg.setLinkAddress(new LinkAddress(addr, prefixLength)); 518 while (st.hasMoreTokens()) { 519 cfg.setFlag(st.nextToken()); 520 } 521 } catch (NoSuchElementException nsee) { 522 throw new IllegalStateException("Invalid response from daemon: " + event); 523 } 524 return cfg; 525 } 526 527 @Override 528 public void setInterfaceConfig(String iface, InterfaceConfiguration cfg) { 529 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 530 LinkAddress linkAddr = cfg.getLinkAddress(); 531 if (linkAddr == null || linkAddr.getAddress() == null) { 532 throw new IllegalStateException("Null LinkAddress given"); 533 } 534 535 final Command cmd = new Command("interface", "setcfg", iface, 536 linkAddr.getAddress().getHostAddress(), 537 linkAddr.getNetworkPrefixLength()); 538 for (String flag : cfg.getFlags()) { 539 cmd.appendArg(flag); 540 } 541 542 try { 543 mConnector.execute(cmd); 544 } catch (NativeDaemonConnectorException e) { 545 throw e.rethrowAsParcelableException(); 546 } 547 } 548 549 @Override 550 public void setInterfaceDown(String iface) { 551 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 552 final InterfaceConfiguration ifcg = getInterfaceConfig(iface); 553 ifcg.setInterfaceDown(); 554 setInterfaceConfig(iface, ifcg); 555 } 556 557 @Override 558 public void setInterfaceUp(String iface) { 559 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 560 final InterfaceConfiguration ifcg = getInterfaceConfig(iface); 561 ifcg.setInterfaceUp(); 562 setInterfaceConfig(iface, ifcg); 563 } 564 565 @Override 566 public void setInterfaceIpv6PrivacyExtensions(String iface, boolean enable) { 567 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 568 try { 569 mConnector.execute( 570 "interface", "ipv6privacyextensions", iface, enable ? "enable" : "disable"); 571 } catch (NativeDaemonConnectorException e) { 572 throw e.rethrowAsParcelableException(); 573 } 574 } 575 576 /* TODO: This is right now a IPv4 only function. Works for wifi which loses its 577 IPv6 addresses on interface down, but we need to do full clean up here */ 578 @Override 579 public void clearInterfaceAddresses(String iface) { 580 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 581 try { 582 mConnector.execute("interface", "clearaddrs", iface); 583 } catch (NativeDaemonConnectorException e) { 584 throw e.rethrowAsParcelableException(); 585 } 586 } 587 588 @Override 589 public void enableIpv6(String iface) { 590 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 591 try { 592 mConnector.execute("interface", "ipv6", iface, "enable"); 593 } catch (NativeDaemonConnectorException e) { 594 throw e.rethrowAsParcelableException(); 595 } 596 } 597 598 @Override 599 public void disableIpv6(String iface) { 600 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 601 try { 602 mConnector.execute("interface", "ipv6", iface, "disable"); 603 } catch (NativeDaemonConnectorException e) { 604 throw e.rethrowAsParcelableException(); 605 } 606 } 607 608 @Override 609 public void addRoute(String interfaceName, RouteInfo route) { 610 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 611 modifyRoute(interfaceName, ADD, route, DEFAULT); 612 } 613 614 @Override 615 public void removeRoute(String interfaceName, RouteInfo route) { 616 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 617 modifyRoute(interfaceName, REMOVE, route, DEFAULT); 618 } 619 620 @Override 621 public void addSecondaryRoute(String interfaceName, RouteInfo route) { 622 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 623 modifyRoute(interfaceName, ADD, route, SECONDARY); 624 } 625 626 @Override 627 public void removeSecondaryRoute(String interfaceName, RouteInfo route) { 628 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 629 modifyRoute(interfaceName, REMOVE, route, SECONDARY); 630 } 631 632 private void modifyRoute(String interfaceName, String action, RouteInfo route, String type) { 633 final Command cmd = new Command("interface", "route", action, interfaceName, type); 634 635 // create triplet: dest-ip-addr prefixlength gateway-ip-addr 636 final LinkAddress la = route.getDestination(); 637 cmd.appendArg(la.getAddress().getHostAddress()); 638 cmd.appendArg(la.getNetworkPrefixLength()); 639 640 if (route.getGateway() == null) { 641 if (la.getAddress() instanceof Inet4Address) { 642 cmd.appendArg("0.0.0.0"); 643 } else { 644 cmd.appendArg("::0"); 645 } 646 } else { 647 cmd.appendArg(route.getGateway().getHostAddress()); 648 } 649 650 try { 651 mConnector.execute(cmd); 652 } catch (NativeDaemonConnectorException e) { 653 throw e.rethrowAsParcelableException(); 654 } 655 } 656 657 private ArrayList<String> readRouteList(String filename) { 658 FileInputStream fstream = null; 659 ArrayList<String> list = new ArrayList<String>(); 660 661 try { 662 fstream = new FileInputStream(filename); 663 DataInputStream in = new DataInputStream(fstream); 664 BufferedReader br = new BufferedReader(new InputStreamReader(in)); 665 String s; 666 667 // throw away the title line 668 669 while (((s = br.readLine()) != null) && (s.length() != 0)) { 670 list.add(s); 671 } 672 } catch (IOException ex) { 673 // return current list, possibly empty 674 } finally { 675 if (fstream != null) { 676 try { 677 fstream.close(); 678 } catch (IOException ex) {} 679 } 680 } 681 682 return list; 683 } 684 685 @Override 686 public RouteInfo[] getRoutes(String interfaceName) { 687 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 688 ArrayList<RouteInfo> routes = new ArrayList<RouteInfo>(); 689 690 // v4 routes listed as: 691 // iface dest-addr gateway-addr flags refcnt use metric netmask mtu window IRTT 692 for (String s : readRouteList("/proc/net/route")) { 693 String[] fields = s.split("\t"); 694 695 if (fields.length > 7) { 696 String iface = fields[0]; 697 698 if (interfaceName.equals(iface)) { 699 String dest = fields[1]; 700 String gate = fields[2]; 701 String flags = fields[3]; // future use? 702 String mask = fields[7]; 703 try { 704 // address stored as a hex string, ex: 0014A8C0 705 InetAddress destAddr = 706 NetworkUtils.intToInetAddress((int)Long.parseLong(dest, 16)); 707 int prefixLength = 708 NetworkUtils.netmaskIntToPrefixLength( 709 (int)Long.parseLong(mask, 16)); 710 LinkAddress linkAddress = new LinkAddress(destAddr, prefixLength); 711 712 // address stored as a hex string, ex 0014A8C0 713 InetAddress gatewayAddr = 714 NetworkUtils.intToInetAddress((int)Long.parseLong(gate, 16)); 715 716 RouteInfo route = new RouteInfo(linkAddress, gatewayAddr); 717 routes.add(route); 718 } catch (Exception e) { 719 Log.e(TAG, "Error parsing route " + s + " : " + e); 720 continue; 721 } 722 } 723 } 724 } 725 726 // v6 routes listed as: 727 // dest-addr prefixlength ?? ?? gateway-addr ?? ?? ?? ?? iface 728 for (String s : readRouteList("/proc/net/ipv6_route")) { 729 String[]fields = s.split("\\s+"); 730 if (fields.length > 9) { 731 String iface = fields[9].trim(); 732 if (interfaceName.equals(iface)) { 733 String dest = fields[0]; 734 String prefix = fields[1]; 735 String gate = fields[4]; 736 737 try { 738 // prefix length stored as a hex string, ex 40 739 int prefixLength = Integer.parseInt(prefix, 16); 740 741 // address stored as a 32 char hex string 742 // ex fe800000000000000000000000000000 743 InetAddress destAddr = NetworkUtils.hexToInet6Address(dest); 744 LinkAddress linkAddress = new LinkAddress(destAddr, prefixLength); 745 746 InetAddress gateAddr = NetworkUtils.hexToInet6Address(gate); 747 748 RouteInfo route = new RouteInfo(linkAddress, gateAddr); 749 routes.add(route); 750 } catch (Exception e) { 751 Log.e(TAG, "Error parsing route " + s + " : " + e); 752 continue; 753 } 754 } 755 } 756 } 757 return routes.toArray(new RouteInfo[routes.size()]); 758 } 759 760 @Override 761 public void shutdown() { 762 // TODO: remove from aidl if nobody calls externally 763 mContext.enforceCallingOrSelfPermission(SHUTDOWN, TAG); 764 765 Slog.d(TAG, "Shutting down"); 766 } 767 768 @Override 769 public boolean getIpForwardingEnabled() throws IllegalStateException{ 770 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 771 772 final NativeDaemonEvent event; 773 try { 774 event = mConnector.execute("ipfwd", "status"); 775 } catch (NativeDaemonConnectorException e) { 776 throw e.rethrowAsParcelableException(); 777 } 778 779 // 211 Forwarding enabled 780 event.checkCode(IpFwdStatusResult); 781 return event.getMessage().endsWith("enabled"); 782 } 783 784 @Override 785 public void setIpForwardingEnabled(boolean enable) { 786 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 787 try { 788 mConnector.execute("ipfwd", enable ? "enable" : "disable"); 789 } catch (NativeDaemonConnectorException e) { 790 throw e.rethrowAsParcelableException(); 791 } 792 } 793 794 @Override 795 public void startTethering(String[] dhcpRange) { 796 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 797 // cmd is "tether start first_start first_stop second_start second_stop ..." 798 // an odd number of addrs will fail 799 800 final Command cmd = new Command("tether", "start"); 801 for (String d : dhcpRange) { 802 cmd.appendArg(d); 803 } 804 805 try { 806 mConnector.execute(cmd); 807 } catch (NativeDaemonConnectorException e) { 808 throw e.rethrowAsParcelableException(); 809 } 810 } 811 812 @Override 813 public void stopTethering() { 814 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 815 try { 816 mConnector.execute("tether", "stop"); 817 } catch (NativeDaemonConnectorException e) { 818 throw e.rethrowAsParcelableException(); 819 } 820 } 821 822 @Override 823 public boolean isTetheringStarted() { 824 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 825 826 final NativeDaemonEvent event; 827 try { 828 event = mConnector.execute("tether", "status"); 829 } catch (NativeDaemonConnectorException e) { 830 throw e.rethrowAsParcelableException(); 831 } 832 833 // 210 Tethering services started 834 event.checkCode(TetherStatusResult); 835 return event.getMessage().endsWith("started"); 836 } 837 838 // TODO(BT) Remove 839 public void startReverseTethering(String iface) 840 throws IllegalStateException { 841 if (DBG) Slog.d(TAG, "startReverseTethering in"); 842 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 843 // cmd is "tether start first_start first_stop second_start second_stop ..." 844 // an odd number of addrs will fail 845 String cmd = "tether start-reverse"; 846 cmd += " " + iface; 847 if (DBG) Slog.d(TAG, "startReverseTethering cmd: " + cmd); 848 try { 849 mConnector.doCommand(cmd); 850 } catch (NativeDaemonConnectorException e) { 851 throw new IllegalStateException("Unable to communicate to native daemon"); 852 } 853 BluetoothTetheringDataTracker.getInstance().startReverseTether(iface); 854 855 } 856 857 // TODO(BT) Remove 858 public void stopReverseTethering() throws IllegalStateException { 859 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 860 try { 861 mConnector.doCommand("tether stop-reverse"); 862 } catch (NativeDaemonConnectorException e) { 863 throw new IllegalStateException("Unable to communicate to native daemon to stop tether"); 864 } 865 BluetoothTetheringDataTracker.getInstance().stopReverseTether(); 866 } 867 868 @Override 869 public void tetherInterface(String iface) { 870 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 871 try { 872 mConnector.execute("tether", "interface", "add", iface); 873 } catch (NativeDaemonConnectorException e) { 874 throw e.rethrowAsParcelableException(); 875 } 876 } 877 878 @Override 879 public void untetherInterface(String iface) { 880 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 881 try { 882 mConnector.execute("tether", "interface", "remove", iface); 883 } catch (NativeDaemonConnectorException e) { 884 throw e.rethrowAsParcelableException(); 885 } 886 } 887 888 @Override 889 public String[] listTetheredInterfaces() { 890 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 891 try { 892 return NativeDaemonEvent.filterMessageList( 893 mConnector.executeForList("tether", "interface", "list"), 894 TetherInterfaceListResult); 895 } catch (NativeDaemonConnectorException e) { 896 throw e.rethrowAsParcelableException(); 897 } 898 } 899 900 @Override 901 public void setDnsForwarders(String[] dns) { 902 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 903 904 final Command cmd = new Command("tether", "dns", "set"); 905 for (String s : dns) { 906 cmd.appendArg(NetworkUtils.numericToInetAddress(s).getHostAddress()); 907 } 908 909 try { 910 mConnector.execute(cmd); 911 } catch (NativeDaemonConnectorException e) { 912 throw e.rethrowAsParcelableException(); 913 } 914 } 915 916 @Override 917 public String[] getDnsForwarders() { 918 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 919 try { 920 return NativeDaemonEvent.filterMessageList( 921 mConnector.executeForList("tether", "dns", "list"), TetherDnsFwdTgtListResult); 922 } catch (NativeDaemonConnectorException e) { 923 throw e.rethrowAsParcelableException(); 924 } 925 } 926 927 private void modifyNat(String action, String internalInterface, String externalInterface) 928 throws SocketException { 929 final Command cmd = new Command("nat", action, internalInterface, externalInterface); 930 931 final NetworkInterface internalNetworkInterface = NetworkInterface.getByName( 932 internalInterface); 933 if (internalNetworkInterface == null) { 934 cmd.appendArg("0"); 935 } else { 936 Collection<InterfaceAddress> interfaceAddresses = internalNetworkInterface 937 .getInterfaceAddresses(); 938 cmd.appendArg(interfaceAddresses.size()); 939 for (InterfaceAddress ia : interfaceAddresses) { 940 InetAddress addr = NetworkUtils.getNetworkPart( 941 ia.getAddress(), ia.getNetworkPrefixLength()); 942 cmd.appendArg(addr.getHostAddress() + "/" + ia.getNetworkPrefixLength()); 943 } 944 } 945 946 try { 947 mConnector.execute(cmd); 948 } catch (NativeDaemonConnectorException e) { 949 throw e.rethrowAsParcelableException(); 950 } 951 } 952 953 @Override 954 public void enableNat(String internalInterface, String externalInterface) { 955 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 956 try { 957 modifyNat("enable", internalInterface, externalInterface); 958 } catch (SocketException e) { 959 throw new IllegalStateException(e); 960 } 961 } 962 963 @Override 964 public void disableNat(String internalInterface, String externalInterface) { 965 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 966 try { 967 modifyNat("disable", internalInterface, externalInterface); 968 } catch (SocketException e) { 969 throw new IllegalStateException(e); 970 } 971 } 972 973 @Override 974 public String[] listTtys() { 975 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 976 try { 977 return NativeDaemonEvent.filterMessageList( 978 mConnector.executeForList("list_ttys"), TtyListResult); 979 } catch (NativeDaemonConnectorException e) { 980 throw e.rethrowAsParcelableException(); 981 } 982 } 983 984 @Override 985 public void attachPppd( 986 String tty, String localAddr, String remoteAddr, String dns1Addr, String dns2Addr) { 987 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 988 try { 989 mConnector.execute("pppd", "attach", tty, 990 NetworkUtils.numericToInetAddress(localAddr).getHostAddress(), 991 NetworkUtils.numericToInetAddress(remoteAddr).getHostAddress(), 992 NetworkUtils.numericToInetAddress(dns1Addr).getHostAddress(), 993 NetworkUtils.numericToInetAddress(dns2Addr).getHostAddress()); 994 } catch (NativeDaemonConnectorException e) { 995 throw e.rethrowAsParcelableException(); 996 } 997 } 998 999 @Override 1000 public void detachPppd(String tty) { 1001 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1002 try { 1003 mConnector.execute("pppd", "detach", tty); 1004 } catch (NativeDaemonConnectorException e) { 1005 throw e.rethrowAsParcelableException(); 1006 } 1007 } 1008 1009 @Override 1010 public void startAccessPoint( 1011 WifiConfiguration wifiConfig, String wlanIface) { 1012 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1013 try { 1014 wifiFirmwareReload(wlanIface, "AP"); 1015 if (wifiConfig == null) { 1016 mConnector.execute("softap", "set", wlanIface); 1017 } else { 1018 mConnector.execute("softap", "set", wlanIface, wifiConfig.SSID, 1019 getSecurityType(wifiConfig), wifiConfig.preSharedKey); 1020 } 1021 mConnector.execute("softap", "startap"); 1022 } catch (NativeDaemonConnectorException e) { 1023 throw e.rethrowAsParcelableException(); 1024 } 1025 } 1026 1027 private static String getSecurityType(WifiConfiguration wifiConfig) { 1028 switch (wifiConfig.getAuthType()) { 1029 case KeyMgmt.WPA_PSK: 1030 return "wpa-psk"; 1031 case KeyMgmt.WPA2_PSK: 1032 return "wpa2-psk"; 1033 default: 1034 return "open"; 1035 } 1036 } 1037 1038 /* @param mode can be "AP", "STA" or "P2P" */ 1039 @Override 1040 public void wifiFirmwareReload(String wlanIface, String mode) { 1041 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1042 try { 1043 mConnector.execute("softap", "fwreload", wlanIface, mode); 1044 } catch (NativeDaemonConnectorException e) { 1045 throw e.rethrowAsParcelableException(); 1046 } 1047 } 1048 1049 @Override 1050 public void stopAccessPoint(String wlanIface) { 1051 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1052 try { 1053 mConnector.execute("softap", "stopap"); 1054 wifiFirmwareReload(wlanIface, "STA"); 1055 } catch (NativeDaemonConnectorException e) { 1056 throw e.rethrowAsParcelableException(); 1057 } 1058 } 1059 1060 @Override 1061 public void setAccessPoint(WifiConfiguration wifiConfig, String wlanIface) { 1062 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1063 try { 1064 if (wifiConfig == null) { 1065 mConnector.execute("softap", "set", wlanIface); 1066 } else { 1067 mConnector.execute("softap", "set", wlanIface, wifiConfig.SSID, 1068 getSecurityType(wifiConfig), wifiConfig.preSharedKey); 1069 } 1070 } catch (NativeDaemonConnectorException e) { 1071 throw e.rethrowAsParcelableException(); 1072 } 1073 } 1074 1075 @Override 1076 public void addIdleTimer(String iface, int timeout, String label) { 1077 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1078 1079 if (DBG) Slog.d(TAG, "Adding idletimer"); 1080 1081 synchronized (mIdleTimerLock) { 1082 IdleTimerParams params = mActiveIdleTimers.get(iface); 1083 if (params != null) { 1084 // the interface already has idletimer, update network count 1085 params.networkCount++; 1086 return; 1087 } 1088 1089 try { 1090 mConnector.execute("idletimer", "add", iface, Integer.toString(timeout), label); 1091 } catch (NativeDaemonConnectorException e) { 1092 throw e.rethrowAsParcelableException(); 1093 } 1094 mActiveIdleTimers.put(iface, new IdleTimerParams(timeout, label)); 1095 } 1096 } 1097 1098 @Override 1099 public void removeIdleTimer(String iface) { 1100 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1101 1102 if (DBG) Slog.d(TAG, "Removing idletimer"); 1103 1104 synchronized (mIdleTimerLock) { 1105 IdleTimerParams params = mActiveIdleTimers.get(iface); 1106 if (params == null || --(params.networkCount) > 0) { 1107 return; 1108 } 1109 1110 try { 1111 mConnector.execute("idletimer", "remove", iface, 1112 Integer.toString(params.timeout), params.label); 1113 } catch (NativeDaemonConnectorException e) { 1114 throw e.rethrowAsParcelableException(); 1115 } 1116 mActiveIdleTimers.remove(iface); 1117 } 1118 } 1119 1120 @Override 1121 public NetworkStats getNetworkStatsSummaryDev() { 1122 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1123 return mStatsFactory.readNetworkStatsSummaryDev(); 1124 } 1125 1126 @Override 1127 public NetworkStats getNetworkStatsSummaryXt() { 1128 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1129 return mStatsFactory.readNetworkStatsSummaryXt(); 1130 } 1131 1132 @Override 1133 public NetworkStats getNetworkStatsDetail() { 1134 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1135 return mStatsFactory.readNetworkStatsDetail(UID_ALL); 1136 } 1137 1138 @Override 1139 public void setInterfaceQuota(String iface, long quotaBytes) { 1140 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1141 1142 // silently discard when control disabled 1143 // TODO: eventually migrate to be always enabled 1144 if (!mBandwidthControlEnabled) return; 1145 1146 synchronized (mQuotaLock) { 1147 if (mActiveQuotas.containsKey(iface)) { 1148 throw new IllegalStateException("iface " + iface + " already has quota"); 1149 } 1150 1151 try { 1152 // TODO: support quota shared across interfaces 1153 mConnector.execute("bandwidth", "setiquota", iface, quotaBytes); 1154 mActiveQuotas.put(iface, quotaBytes); 1155 } catch (NativeDaemonConnectorException e) { 1156 throw e.rethrowAsParcelableException(); 1157 } 1158 } 1159 } 1160 1161 @Override 1162 public void removeInterfaceQuota(String iface) { 1163 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1164 1165 // silently discard when control disabled 1166 // TODO: eventually migrate to be always enabled 1167 if (!mBandwidthControlEnabled) return; 1168 1169 synchronized (mQuotaLock) { 1170 if (!mActiveQuotas.containsKey(iface)) { 1171 // TODO: eventually consider throwing 1172 return; 1173 } 1174 1175 mActiveQuotas.remove(iface); 1176 mActiveAlerts.remove(iface); 1177 1178 try { 1179 // TODO: support quota shared across interfaces 1180 mConnector.execute("bandwidth", "removeiquota", iface); 1181 } catch (NativeDaemonConnectorException e) { 1182 throw e.rethrowAsParcelableException(); 1183 } 1184 } 1185 } 1186 1187 @Override 1188 public void setInterfaceAlert(String iface, long alertBytes) { 1189 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1190 1191 // silently discard when control disabled 1192 // TODO: eventually migrate to be always enabled 1193 if (!mBandwidthControlEnabled) return; 1194 1195 // quick sanity check 1196 if (!mActiveQuotas.containsKey(iface)) { 1197 throw new IllegalStateException("setting alert requires existing quota on iface"); 1198 } 1199 1200 synchronized (mQuotaLock) { 1201 if (mActiveAlerts.containsKey(iface)) { 1202 throw new IllegalStateException("iface " + iface + " already has alert"); 1203 } 1204 1205 try { 1206 // TODO: support alert shared across interfaces 1207 mConnector.execute("bandwidth", "setinterfacealert", iface, alertBytes); 1208 mActiveAlerts.put(iface, alertBytes); 1209 } catch (NativeDaemonConnectorException e) { 1210 throw e.rethrowAsParcelableException(); 1211 } 1212 } 1213 } 1214 1215 @Override 1216 public void removeInterfaceAlert(String iface) { 1217 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1218 1219 // silently discard when control disabled 1220 // TODO: eventually migrate to be always enabled 1221 if (!mBandwidthControlEnabled) return; 1222 1223 synchronized (mQuotaLock) { 1224 if (!mActiveAlerts.containsKey(iface)) { 1225 // TODO: eventually consider throwing 1226 return; 1227 } 1228 1229 try { 1230 // TODO: support alert shared across interfaces 1231 mConnector.execute("bandwidth", "removeinterfacealert", iface); 1232 mActiveAlerts.remove(iface); 1233 } catch (NativeDaemonConnectorException e) { 1234 throw e.rethrowAsParcelableException(); 1235 } 1236 } 1237 } 1238 1239 @Override 1240 public void setGlobalAlert(long alertBytes) { 1241 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1242 1243 // silently discard when control disabled 1244 // TODO: eventually migrate to be always enabled 1245 if (!mBandwidthControlEnabled) return; 1246 1247 try { 1248 mConnector.execute("bandwidth", "setglobalalert", alertBytes); 1249 } catch (NativeDaemonConnectorException e) { 1250 throw e.rethrowAsParcelableException(); 1251 } 1252 } 1253 1254 @Override 1255 public void setUidNetworkRules(int uid, boolean rejectOnQuotaInterfaces) { 1256 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1257 1258 // silently discard when control disabled 1259 // TODO: eventually migrate to be always enabled 1260 if (!mBandwidthControlEnabled) return; 1261 1262 synchronized (mQuotaLock) { 1263 final boolean oldRejectOnQuota = mUidRejectOnQuota.get(uid, false); 1264 if (oldRejectOnQuota == rejectOnQuotaInterfaces) { 1265 // TODO: eventually consider throwing 1266 return; 1267 } 1268 1269 try { 1270 mConnector.execute("bandwidth", 1271 rejectOnQuotaInterfaces ? "addnaughtyapps" : "removenaughtyapps", uid); 1272 if (rejectOnQuotaInterfaces) { 1273 mUidRejectOnQuota.put(uid, true); 1274 } else { 1275 mUidRejectOnQuota.delete(uid); 1276 } 1277 } catch (NativeDaemonConnectorException e) { 1278 throw e.rethrowAsParcelableException(); 1279 } 1280 } 1281 } 1282 1283 @Override 1284 public boolean isBandwidthControlEnabled() { 1285 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1286 return mBandwidthControlEnabled; 1287 } 1288 1289 @Override 1290 public NetworkStats getNetworkStatsUidDetail(int uid) { 1291 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1292 return mStatsFactory.readNetworkStatsDetail(uid); 1293 } 1294 1295 @Override 1296 public NetworkStats getNetworkStatsTethering(String[] ifacePairs) { 1297 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1298 1299 if (ifacePairs.length % 2 != 0) { 1300 throw new IllegalArgumentException( 1301 "unexpected ifacePairs; length=" + ifacePairs.length); 1302 } 1303 1304 final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 1); 1305 for (int i = 0; i < ifacePairs.length; i += 2) { 1306 final String ifaceIn = ifacePairs[i]; 1307 final String ifaceOut = ifacePairs[i + 1]; 1308 if (ifaceIn != null && ifaceOut != null) { 1309 stats.combineValues(getNetworkStatsTethering(ifaceIn, ifaceOut)); 1310 } 1311 } 1312 return stats; 1313 } 1314 1315 private NetworkStats.Entry getNetworkStatsTethering(String ifaceIn, String ifaceOut) { 1316 final NativeDaemonEvent event; 1317 try { 1318 event = mConnector.execute("bandwidth", "gettetherstats", ifaceIn, ifaceOut); 1319 } catch (NativeDaemonConnectorException e) { 1320 throw e.rethrowAsParcelableException(); 1321 } 1322 1323 event.checkCode(TetheringStatsResult); 1324 1325 // 221 ifaceIn ifaceOut rx_bytes rx_packets tx_bytes tx_packets 1326 final StringTokenizer tok = new StringTokenizer(event.getMessage()); 1327 tok.nextToken(); 1328 tok.nextToken(); 1329 1330 try { 1331 final NetworkStats.Entry entry = new NetworkStats.Entry(); 1332 entry.iface = ifaceIn; 1333 entry.uid = UID_TETHERING; 1334 entry.set = SET_DEFAULT; 1335 entry.tag = TAG_NONE; 1336 entry.rxBytes = Long.parseLong(tok.nextToken()); 1337 entry.rxPackets = Long.parseLong(tok.nextToken()); 1338 entry.txBytes = Long.parseLong(tok.nextToken()); 1339 entry.txPackets = Long.parseLong(tok.nextToken()); 1340 return entry; 1341 } catch (NumberFormatException e) { 1342 throw new IllegalStateException( 1343 "problem parsing tethering stats for " + ifaceIn + " " + ifaceOut + ": " + e); 1344 } 1345 } 1346 1347 @Override 1348 public void setInterfaceThrottle(String iface, int rxKbps, int txKbps) { 1349 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1350 try { 1351 mConnector.execute("interface", "setthrottle", iface, rxKbps, txKbps); 1352 } catch (NativeDaemonConnectorException e) { 1353 throw e.rethrowAsParcelableException(); 1354 } 1355 } 1356 1357 private int getInterfaceThrottle(String iface, boolean rx) { 1358 final NativeDaemonEvent event; 1359 try { 1360 event = mConnector.execute("interface", "getthrottle", iface, rx ? "rx" : "tx"); 1361 } catch (NativeDaemonConnectorException e) { 1362 throw e.rethrowAsParcelableException(); 1363 } 1364 1365 if (rx) { 1366 event.checkCode(InterfaceRxThrottleResult); 1367 } else { 1368 event.checkCode(InterfaceTxThrottleResult); 1369 } 1370 1371 try { 1372 return Integer.parseInt(event.getMessage()); 1373 } catch (NumberFormatException e) { 1374 throw new IllegalStateException("unexpected response:" + event); 1375 } 1376 } 1377 1378 @Override 1379 public int getInterfaceRxThrottle(String iface) { 1380 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1381 return getInterfaceThrottle(iface, true); 1382 } 1383 1384 @Override 1385 public int getInterfaceTxThrottle(String iface) { 1386 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1387 return getInterfaceThrottle(iface, false); 1388 } 1389 1390 @Override 1391 public void setDefaultInterfaceForDns(String iface) { 1392 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1393 try { 1394 mConnector.execute("resolver", "setdefaultif", iface); 1395 } catch (NativeDaemonConnectorException e) { 1396 throw e.rethrowAsParcelableException(); 1397 } 1398 } 1399 1400 @Override 1401 public void setDnsServersForInterface(String iface, String[] servers) { 1402 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1403 1404 final Command cmd = new Command("resolver", "setifdns", iface); 1405 for (String s : servers) { 1406 InetAddress a = NetworkUtils.numericToInetAddress(s); 1407 if (a.isAnyLocalAddress() == false) { 1408 cmd.appendArg(a.getHostAddress()); 1409 } 1410 } 1411 1412 try { 1413 mConnector.execute(cmd); 1414 } catch (NativeDaemonConnectorException e) { 1415 throw e.rethrowAsParcelableException(); 1416 } 1417 } 1418 1419 @Override 1420 public void flushDefaultDnsCache() { 1421 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1422 try { 1423 mConnector.execute("resolver", "flushdefaultif"); 1424 } catch (NativeDaemonConnectorException e) { 1425 throw e.rethrowAsParcelableException(); 1426 } 1427 } 1428 1429 @Override 1430 public void flushInterfaceDnsCache(String iface) { 1431 mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG); 1432 try { 1433 mConnector.execute("resolver", "flushif", iface); 1434 } catch (NativeDaemonConnectorException e) { 1435 throw e.rethrowAsParcelableException(); 1436 } 1437 } 1438 1439 @Override 1440 public void setFirewallEnabled(boolean enabled) { 1441 enforceSystemUid(); 1442 try { 1443 mConnector.execute("firewall", enabled ? "enable" : "disable"); 1444 mFirewallEnabled = enabled; 1445 } catch (NativeDaemonConnectorException e) { 1446 throw e.rethrowAsParcelableException(); 1447 } 1448 } 1449 1450 @Override 1451 public boolean isFirewallEnabled() { 1452 enforceSystemUid(); 1453 return mFirewallEnabled; 1454 } 1455 1456 @Override 1457 public void setFirewallInterfaceRule(String iface, boolean allow) { 1458 enforceSystemUid(); 1459 Preconditions.checkState(mFirewallEnabled); 1460 final String rule = allow ? ALLOW : DENY; 1461 try { 1462 mConnector.execute("firewall", "set_interface_rule", iface, rule); 1463 } catch (NativeDaemonConnectorException e) { 1464 throw e.rethrowAsParcelableException(); 1465 } 1466 } 1467 1468 @Override 1469 public void setFirewallEgressSourceRule(String addr, boolean allow) { 1470 enforceSystemUid(); 1471 Preconditions.checkState(mFirewallEnabled); 1472 final String rule = allow ? ALLOW : DENY; 1473 try { 1474 mConnector.execute("firewall", "set_egress_source_rule", addr, rule); 1475 } catch (NativeDaemonConnectorException e) { 1476 throw e.rethrowAsParcelableException(); 1477 } 1478 } 1479 1480 @Override 1481 public void setFirewallEgressDestRule(String addr, int port, boolean allow) { 1482 enforceSystemUid(); 1483 Preconditions.checkState(mFirewallEnabled); 1484 final String rule = allow ? ALLOW : DENY; 1485 try { 1486 mConnector.execute("firewall", "set_egress_dest_rule", addr, port, rule); 1487 } catch (NativeDaemonConnectorException e) { 1488 throw e.rethrowAsParcelableException(); 1489 } 1490 } 1491 1492 @Override 1493 public void setFirewallUidRule(int uid, boolean allow) { 1494 enforceSystemUid(); 1495 Preconditions.checkState(mFirewallEnabled); 1496 final String rule = allow ? ALLOW : DENY; 1497 try { 1498 mConnector.execute("firewall", "set_uid_rule", uid, rule); 1499 } catch (NativeDaemonConnectorException e) { 1500 throw e.rethrowAsParcelableException(); 1501 } 1502 } 1503 1504 private static void enforceSystemUid() { 1505 final int uid = Binder.getCallingUid(); 1506 if (uid != Process.SYSTEM_UID) { 1507 throw new SecurityException("Only available to AID_SYSTEM"); 1508 } 1509 } 1510 1511 @Override 1512 public void monitor() { 1513 if (mConnector != null) { 1514 mConnector.monitor(); 1515 } 1516 } 1517 1518 @Override 1519 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 1520 mContext.enforceCallingOrSelfPermission(DUMP, TAG); 1521 1522 pw.println("NetworkManagementService NativeDaemonConnector Log:"); 1523 mConnector.dump(fd, pw, args); 1524 pw.println(); 1525 1526 pw.print("Bandwidth control enabled: "); pw.println(mBandwidthControlEnabled); 1527 1528 synchronized (mQuotaLock) { 1529 pw.print("Active quota ifaces: "); pw.println(mActiveQuotas.toString()); 1530 pw.print("Active alert ifaces: "); pw.println(mActiveAlerts.toString()); 1531 } 1532 1533 synchronized (mUidRejectOnQuota) { 1534 pw.print("UID reject on quota ifaces: ["); 1535 final int size = mUidRejectOnQuota.size(); 1536 for (int i = 0; i < size; i++) { 1537 pw.print(mUidRejectOnQuota.keyAt(i)); 1538 if (i < size - 1) pw.print(","); 1539 } 1540 pw.println("]"); 1541 } 1542 1543 pw.print("Firewall enabled: "); pw.println(mFirewallEnabled); 1544 } 1545 } 1546
